Golf ball



May 14, 1940. B. BoGosLowsKY GOLF BALL Filed Sep. 2l. 1937 TENSION INCREASES PROGRESSIVELY TENSION REMAINS CONSTANT FROM SURFACE OF PILL TO POINT 5 TENSION REMAINS CONSTANT ATTORNEY Patented May 14, 1940 UNITED STATES PA'rEN-'l OFFICE 2,200,252V Acom BALL Boris Bogoslowsky, New York, N. Y. Application september 21, 1931, serial No. 104,851

4Claims.

This invention relates to golf balls and methods of making the same.

It is an object of the invention to provide an improved ball'and an improved method of making the same.

In the manufacture of golf balls according to ordinary methods, it is usual to wind successive convolutions of rubber strand, usually in the form of thread or ribbon, under tension, around a center or pill as it is generally called. These pills are of various types, as for example, solid rubber, or more commonly, a rubber sac lled with fluid. In winding the rubber strand around the pill, it is common to apply relatively high tension to the rubber strand and to maintain this tension constant throughout the winding operation.

Inmy copending application, Serial No. 122,957, now Patent No. 2,153,408, I have described a golf ball and method of making the same, in which no pill is used, the ball being formed by winding successive convolutions of rubber st rand from the geometric center of the ball to the outer periphery thereof. In making balls in accordance therewith, I have heretofore followed the common practice of applying relatively high tension to the rubber strand, and maintaining this tension constant throughout the winding operation.

I have now discovered that improved results can be obtained, both in balls of the conventional type, wound around a pill, and in balls of the type of my previous invention, wound from the geometric center, by applying progressively increasing tension to the rubber strand as the winding progresses.

'I'here are various possibilities for combinations of windings at constant tension and windings at progressively increasing tension. For example, the initial windings, whether applied to a pill or otherwise, may be applied at increasing tension. followed by subsequent windings at constant tens on.

Certain of these possibilities are illustrated in the accompanying drawing, in which,

various types of balls embodying my invention.

In Figure 1, the ball is wound from its geo- Y' Figures 1 and `2, are cross sections through' point 5, vand fromlthe point 5 to the periphery or cover 1 is substantially uniform but greater than the maximum tension existing up to the point `5.

In Figure 2 the ball is wound on a pill 2 of any desired construction, the tension applied to the strand 4 increasing progressively from the surface of the pill to the point 5 where the maximum tension is reached, the maximum tension being maintained constant during the remainder of the winding.

It will be understood that the balls wound in accordance with my invention are covered with the usual gutta percha cover 1 in the usual manner.

It will also be understood that the invention may be carried out, winding either a single strand or a plurality of strands of rubber. y

It will be understood that the invention may be variously modied and embodied within the scope of the subjoinedl claims.

I claim as my invention:

1. A golf ball having a substantial portion of its volume formed of successive convolutions of rubber strand in a state of tension progressively .increasing from the inner of said convolutions to the outer of said convolutions, and another substantial portion of its volume formed of successive convolutions of rubber strand in a state of substantially equal tension.

2. A golf ball having a iirst substantial portion 30 of its volume formed of successive convolutions of rubber strand in a state of tension that progressively increases from the inner of said convolutions to the outer of said convolutions, and a 'second substantial portion of its volume formed 35 of successive convolutions of rubberistrand in a state of substantially equal tension greater than the maximum tension existing in said first portion, andsaid second portion forming the outside layers of the wound-portion ofthe ball.

3. A golf ball consisting of a wound portion and a cover and having its entire volume, except the cover, formed of successive convolutions 'of rubber strand in a state of tension,'the tension of the strand forming the respective convolutions Hof one substantial portion of said ball progres- -sively increasing from the inner of said convolutions to the outer of said convolutions, and the tension of the strand forming the respective y convolutions of another substantial portion of 50 said ball being substantially equal.

4. A golf ball consisting of a wound portion and a cover and having its entire volume, except the cover, formed of successive convolutions of rubber strand in a state of tension, the tension 55 v tion.

equal tension forming the outside layer of the wound portion of the ball, and the said tension being g'eater than the maximum tension of the strand forming the convolutions of the iirst por- BORIS BOGOSLOWSKY. 

